Distance

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distance

1. Geometry
a. the length of the shortest line segment joining two points
b. the length along a straight line or curve
2. Horse racing
a. Brit a point on a racecourse 240 yards from the winning post
b. Brit any interval of more than 20 lengths between any two finishers in a race
c. US the part of a racecourse that a horse must reach in any heat before the winner passes the finishing line in order to qualify for later heats
3. go the distance Boxing to complete a bout without being knocked out
4. the distant parts of a picture, such as a landscape
5. middle distance
a. (in a picture) halfway between the foreground and the horizon
b. (in a natural situation) halfway between the observer and the horizon
6. Athletics relating to or denoting the longer races, usually those longer than a mile

Distance

 

distance in depth between servicemen, guns, vehicles, and subunits or units (ships) when formed in ranks, on the march (cruise), or in combat formation and also between aircraft when flying in formation or in a combat formation.


Distance

 

an important geometric concept whose meaning depends on the kind of entities for which it is defined. The distance between two points is the length of the line segment joining the points. The distance from a point to a line or a plane is the length of the perpendicular from this point to the line or plane. The distance between two parallel lines or planes is the length of a common perpendicular to the lines or planes. The distance between two nonintersecting nonparallel lines in space is equal to the distance between the parallel planes in which the lines lie—that is, the length of the line segment that joins the lines and is perpendicular to both.

distance

[′dis·təns]
(mathematics)
A nonnegative number associated with pairs of geometric objects.
The spatial separation of two points, measured by the length of a hypothetical line joining them.
For two parallel lines, two skew lines, or two parallel planes, the length of a line joining the two objects and perpendicular to both.
For a point and a line or plane, the length of the perpendicular from the point to the line or plane.
(mechanics)
The spatial separation of two points, measured by the length of a hypothetical line joining them.
References in classic literature ?
For a single instant his searching and yet wary glance met the wondering look of the other, and then changing its direction, partly in cunning, and partly in disdain, it remained fixed, as if penetrating the distant air.
The old farmers gathered together their families in their wagons, and were heard for some time rattling along the hollow roads, and over the distant hills.
They have likewise discovered two lesser stars, or satellites, which revolve about Mars; whereof the innermost is distant from the centre of the primary planet exactly three of his diameters, and the outermost, five; the former revolves in the space of ten hours, and the latter in twenty-one and a half; so that the squares of their periodical times are very near in the same proportion with the cubes of their distance from the centre of Mars; which evidently shows them to be governed by the same law of gravitation that influences the other heavenly bodies.
a Relentless fate, an endless woe; Don Quixote's tears are on the flow, And all for distant Dulcinea Del Toboso.
Far away to the southeast, marking the quiet, we heard the Martians hooting to one another, and then the air quivered again with the distant thud of their guns.
Dear Ripple, do not go, for you can never reach that distant place: some harm most surely will befall; and then how shall we live, without our dearest, gentlest Spirit?
The tables were arranged in a cleared space of the woods, shut in by the surrounding trees, except where a vista opened eastward, and afforded a distant view of the Great Stone Face.
Some were lying among the herbage, others roaming in their unbounded pastures, while many were engaged in fierce contests like those already described, their low bellowings reaching the ear like the hoarse murmurs of the surf on a distant shore.
Near the close of exceedingly warm day, I was sitting, book in hand, at an open window, commanding, through a long vista of the river banks, a view of a distant hill, the face of which nearest my position had been denuded by what is termed a land-slide, of the principal portion of its trees.
From Genoa the run to Leghorn will be made along the coast in one night, and time appropriated to this point in which to visit Florence, its palaces and galleries; Pisa, its cathedral and "Leaning Tower," and Lucca and its baths, and Roman amphitheater; Florence, the most remote, being distant by rail about sixty miles.
They were sitting in the little, stuffy parlor when the distant chugging of an approaching automobile caught their attention.
Then came the distant report of a shot, and our troops could be seen hurrying to the crossing.